Recording of digital video signals on a magnetic medium having a

Details Recording of digital video signals on a magnetic medium having a Recording of digital video signals on a magnetic medium having a

1991-10-30

1993-10-12

Young, W. R.

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

358330, 358335, 360 15, 360 32, 360 40, H04N 5783

Patent

active

052531228

ABSTRACT:
A magnetic tape for the recording of digital video signals is constituted by a nonmagnetic base having thereon a magnetic layer of at least one thin magnetic metal film which has an energy product of at least 100 G.cm.Oe, and with the surface roughness of the magnetic tape being at most 0.003 .mu.m in center line average height. Such tape, when used with magnetic heads each having a gap defined between portions of the respective head having a saturation magnetic flux density of at least 14 kG., contribute to the maintenance of an acceptable raw error bit rate below 1.times.10.sup.-4 when recording with a recorded bit area of no more than 1.25 .mu.m.sup.2 /bit.

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